| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000424400 |
| ISSN: | 0001-3765 |
| Authors: | Samojeden, Caroline G1 Artusi, Aghata C1 Delevatti, Heliur A.A1 Milesi, Silvia V1 Cansian, Rogerio L2 Kissmann, Camila3 Sausen, Tanise L2 |
| Institutions: | 1Universidade Regional Integrada do Alto Uruguai e das Missoes, Departamento de Ciencias Biologicas, Erechim, Rio Grande do Sul. Brasil 2Universidade Regional Integrada do Alto Uruguai e das Missoes, Departamento de Ciencias Agrarias, Erechim, Rio Grande do Sul. Brasil 3Universidade Estadual Paulista "Julio de Mesquita Filho", Instituto de Biociencias, Botucatu, Sao Paulo. Brasil |
| Year: | 2018 |
| Season: | Sep |
| Volumen: | 90 |
| Number: | 3 |
| Pages: | 2945-2954 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The subtropical riverine forests present a variation in soil water availability throughout the year, following precipitation seasonality. The objective of this work was to evaluate the responses of Cordia americana to different light intensities combined with soil flooding. Seedlings were acclimated to light treatments, with full sun and shade conditions. Sun and shade plants were subjected to soil flooding during periods of 10 (short) and 30 (longer) days. After 10 days, flooded plants had a higher root dry mass accumulation and soluble sugars content, regardless of the light condition. Shade plants presented higher shoot soluble sugars content in relation to the sun plants. After 30 days, a higher shoot soluble sugar content was observed in sun and shade flooded plants. In addition, a higher root soluble sugar content was also observed in sun plants under flood. Periods of short flooding, characterized in subtropical forests as from 5 to 15 days, favor the growth of shade plants and the roots sugar accumulation, fact that can explain the species distribution. However, long periods of flooding may be associated with light environment plasticity, suggesting that the sun plants present a higher flooding tolerance, directly associated with the ability to maintain the sugar content |
| Disciplines: | Biología |
| Keyword: | Angiospermas, Fisiología vegetal, Ecología, Vegetación riparia, Sotobosque, Intensidad de la luz, Estrés hídrico, Cordia americana, Boraginaceae |
| Keyword: | Angiosperms, Plant physiology, Ecology, Riparian vegetation, Understory, Light intensity, Water stress, Cordia americana, Boraginaceae |
| Full text: | Texto completo (Ver HTML) |
